/Engine/Plugins/Experimental/Mutable/Source/CustomizableObjectEditor/Classes/MuCOE/Nodes/CustomizableObjectNodeStaticMesh.h
Will always return a valid result. The result can be valid but out of sync with respect the Unreal mesh asset. In other words, the pin still represents a LOD 3 but the asset no longer has this third LOD.
virtual void GetPinSection ( const [UEdGraphPin](API\Runtime\Engine\EdGraph\UEdGraphPin) & Pin, int32 & OutLODIndex, int32 & OutSectionIndex, int32 & OutLayoutIndex ) const